Be careful, doesn't work with all cabs

I tried this between a MarkBass head and cab, and it wouldn't work. I actually ended up sending the cab's crossover away for repair as I thought it had blown - but it turned out the wiring on this cabling isn't suitable for all cabs. Tried another speakon cable with a different wiring convention and it worked perfectly. That other cable works with all of my cabs and PA where as this one was suitable only for a few.